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Plants epiphytic; stems to 15 mm tall; leaves 2-6, oblanceolate, deeply and subequally bilobed, lobes obtuse to acute, grey-green with a raised darker reticulation on the upper surface, 45-110 x 20-30 mm. Inflorescences of several pendent racemes borne below the leaves, 100-200 mm long and with 4-17 flowers; peduncles with one or two sheaths 5 mm long; bracts amplexicaul, 3 mm long. Flowers white; pedicel plus ovary slender, c. 15 mm long. Sepals subequal; median erect, arching over the gynostemium, elliptic, slightly apiculate, 8-12 x 4-7 mm; laterals ligulate-elliptic, apiculate, 9-14 x 3-5 mm. Petals oblong, apiculate, 8-13 x 3-6 mm, reflexed. Lip narrowly oblong, rounded-apiculate, 9-15 x 4-7 mm; spur slender, sometimes somewhat swollen in the lower third, 100-120 mm long. Gynostemium 5 mm tall.
Leaves 2–6, distichous, 2–11 × 1.3–3.4 cm, oblong-ligulate to sub-orbicular, unequally or subequally 2-lobed at the apex; the lobes subacute or rounded, the longer to 15 mm long; lamina grey-green or purple-green, with raised, darker reticulate venation.
Lip 9–13 × 4–7 mm, oblong-ligulate, apiculate, the margins reflexed in lower half; spur 10–15 cm long, straight or slightly curved, sometimes coiled in bud, slightly swollen in apical half but narrowing towards the tip.
Epiphyte. Stems up to 50 mm long. Leaves thick with conspicuous, reticulate, darker-coloured venation. Lip smooth at base. Spur 100-120 mm long. Flowers white, sometimes tinged with pink.
Dorsal sepal arching over the column, 8–12 × 4–6 mm, ovate, apiculate; lateral sepals oblique or reflexed, 9–14 × 3–5 mm, oblong-ligulate or oblanceolate, concave, apiculate.
Inflorescences arising below the leaves, 10–20 cm long, 2–17-flowered.
Short-stemmed epiphytic herb; roots numerous, 5–7 mm in diameter.
Column stout, to 4 mm long; anther cap slightly beaked.
Petals spreading, 8–12 × 3–5.5 mm, oblong-apiculate.
Flowers white, sometimes pink-tinged.
Bracts to 5 mm long, brown, ovate.
Pedicel and ovary 15–20 mm long.
